INTRODUCTION 



A catalogue of animals should serve practically all fields of biology. 

 It therefore should be as complete a listing of all the records of families, 

 subfamiUes, tribes, genera, species, and varieties as it is possible for the 

 author to assemble. The nature of the reference is of the greatest 

 importance. A student of zoogeography should be able to find a com- 

 plete list of the regions inhabited by the various species. The student 

 of ecology should be able to find references to all that is known about 

 the life history, food plants, and other pertinent data. The student of 

 economic entomology should be able to check the histories of those 

 species that are suspected of being injurious to plants. The plant 

 disease speciaUst should be able to check the current nomenclature of 

 the species that are disease vectors, or are suspected of being disease 

 vectors. Those research workers studying morphology, physiology, or 

 genetics should be able to trace development in the field of their special 

 interest. And finally, the student of taxonomy should be reheved of 

 the burden of searching for past recordings, and the journals which 

 pubHsh taxonomic papers should be relieved of publishing past records 

 and duplicating synonymy that is already well known. Thus it would 

 be necessary to record only synonymy that has been developed since 

 publication of the catalogue. 



In this, as in other catalogues of the present series, the family is 

 divided into genera, which are arranged in as nearly a phylogenetic 

 order as our present knowledge will permit. The species are arranged 

 under the genera in alphabetic sequence. 



The notes that follow the references are generally self-explanatory, but 

 three points may be mentioned here. Such notations as "[described]," 

 "[notes]," "[key]," and the like are intended to be suggestive rather 

 than precise or exclusive. The notation "[error]" means not accepted 

 in this catalogue. Usually the latest published synonymy is accepted, 

 but not always. The notation "[comparative note]" is used to designate 

 those references, often of the greatest taxonomic significance, in which 

 two generic, specific, or other groups are compared. All references 

 have been checked against the original save those marked with an 

 asterisk (*), which have been accepted from reliable sources. Every 

 effort has been made to have the references full and complete and to 

 give an indication of the character of the data contained. Where the 

 writer knows that reprints have been issued with different pagination, 

 that is indicated in parentheses following the page numbers of the 



